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13.8  Chapter information

Authors: Barnaby C Reeves, Jonathan J Deeks, Julian PT Higgins and George A Wells on behalf of the Cochrane Non-Randomised Studies Methods Group.

This chapter should be cited as: Reeves BC, Deeks JJ, Higgins JPT, Wells GA. Chapter 13: Including non-randomized studies. In: Higgins JPT, Green S (editors), Cochrane Handbook for Systematic Reviews of Interventions Version 5.1.0 (updated March 2011). The Cochrane Collaboration, 2011. Available from

Acknowledgements: We gratefully acknowledge Ole Olsen, Peter G√łtzsche, Angela Harden, Mustafa Soomro, Guido Schwarzer and Bev Shea for their early drafts of different sections. We also thank Laurent Audig√©, Duncan Saunders, Alex Sutton, Helen Thomas and Gro Jamtved for comments on previous drafts.